Under the intake manifold, under the upper outlet.
This is from AutoZone: "On your 1997 GMC TRUCK SAFARI VAN 2WD, the EGR VALVE is UNDER HOOD, CENTER, UPPER ENGINE AREA, FRONT OF INTAKE MANIFOLD, PASSENGER SIDE OF WATER OUTLET, MOUNTED IN INTAKE MANIFOLD."
you need manifold vacuum. Either on one of the intake runners or at the base of the carb.
The oil cooler on a 2003 CTS is located on top of the engine block between the heads but below the intake manifold. It is not visible with the intake manifold in place but you can see the inlet and outlet lines that run from the side of the engine where the oil filter adapter is mounted around to the back of the engine.
In the engine compartment at the outlet of the exhaust manifold.
The filter intake is the outlet that is at a higher point than the other. There are two outlet ports on an above ground pool, there is a hgh one and there is a lower one. It is the higher one that is the intake for the filter system.
The intercooler hoses deliver air from the turbocharger outlet to the intercooler inlet and from the intercooler outlet to the engine intake manifold. When air is compressed in the turbocharger, it gets heated. The intercooler cools the air coming out of the turbocharger before it goes into the engine. Cooling the intake air helps prevent detonation (engine knocking) and lets the engine use a little bit higher compression ratio.
it goes to the inlet manifold or to a vacum outlet on the carby (if it is not fuel injected)
It depends on the engine liter. For 2.2 liter engine check the intake manifold, under the outlet resonator and duct assembly. For 3 engine liter it is located below battery cooling box.
Since the year, make, and model of the vehicle was not expressed in the question, I will give a general answer that pertains to most liquid-cooled gasoline engines. Generally, the temperature sending unit is located on the intake manifold, water outlet, cylinder head or engine block. It will be located in a threaded port, screwed into a water jacket where hot water flows through the engine. For most fuel injected vehicles it will be in the water outlet, engine block, cylinder head. For carbureted engines is usually located on the intake manifold or engine block.
If your car has the "X" engine with carburetter the fan switch is in the intake manifold more or less in front of the distributor. If your car has the "W" engine with fuel injection the fan switch is in the top of the thermostat outlet.
The Manifold absolute pressure sensor on a fiero V6 is mounted on the passenger side manifold right beside the thermostat assembly/water outlet